关于太空的英语作文
题目
关于太空的英语作文
答案
Travel A succession of beautiful scenery makes one feel delighted. A long stay in the same surroundings to make everything the same. Routine work often makes one feel bored But if you take a trip or a long journey on your holidays to some scenic spots or historic sites, that will make great difference. Travel can widen one’s knowledge. The farther you go, the more you will learn about different politics, economics, customs as well as geography. If you travel the whole world some day, you will fully understand the globe on which we live. However, too much travel causes tiredness. You get on a bus or a taxi, you travel on the train or in a plane, being patient with the hours needed on your mute from one place to another, that will make you exhausted after a while.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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